Window construction



,13, 1933. H. D. sEvlsoN WINDOW CONSTRUCTION Filed Feb. 8, 1932 z sheets-sheet 'i June 13, 1933. H. D. sEvlsQN WINDOW CONSTRUCTION Filed Feb. 8, 1952 2 Shets-SheeiI 2 Patented June 13, `1933 UNITEDSTATES BATENT FFICE HRRY ILEVIENQF INDIANA, AssIG'NoIt To THE A DLAKE COMPANY, or'` tf1-nemica ILLINOIS, A CORPORATION or ILLINOIS WINDOW CONSTRUCTION f Application mea February s, 1932. 'serial' No. 591,542.

This invention relates to improvements 'in sliding sash window construction, and has for its, object the provision of particularly' `effi- `and to effect a sealing against the elements when closed.

The attainment of this objectis of especially great importance in connection with the windowsof vehicles such as railway cars and buses, but it `is also desirable with win-` dows in houses and other structures.

In order that the invention may be' readily understood, a preferred construction is herein described as predicated upon the accompanying drawings, the novel features of the construction pointed out theappended claims,

it being of course understood that the invention is not to be taken asrestricted to the particular embodiment illustrated and described.

In the drawings:

` Fig. l is an inside elevation of a window in Which the invention is embodied;

Fig. 2 is an elevation of one ofthe inner sash stops,v'iewed in the plane of the sash;

Figs.` 3, 4, 5 and 6 arehorizontal sections taken on Vthe respective section lines indicated on Fig. 2;

Fig. 7 is a vertical section throu h the sash, taken on the line"7-7 of Fig. 1, s owing the sash in its closed osition;

Fig. 8 is a simiier View, showing the sash ina released and partially raised position; and

Fig. 9 is a similarview, showing the sash in one of its stationary elevated positions.

The window Ashown in the drawings is provided, at each side thereof, with an outer stop 10 and an inner stopll. Bothstops are vattached to the usual post plate 12 and are `spaced apart from each other far enough to permit the sash 13 to slide freely up and down therebetween. To insure proper spacing, the

`inner stop 11 is providedwith a flange 14 which projects outwardly therefrom along `theface of the post plate into engagement with the base of theouter stop 10.

The inner stop11, which` preferably contains a curtain guide groove 15, detachably secured to the post plate by screws 16 orl other sultable attaching means. This stop is of hollow sheetnietal construction and contains a U-shaped reinforcing stripl'?. The side of the inner stop which faces the sash is open, and the resulting channel 18 houses a lock rack 19.

The lock rack 19 differs from the ordinary lock rack in that itisvertically shiftable in the channel 18, for a purpose which will hereinafter be explained. The rack is reinforced by a backing strip 20 whichextends `from the lower end of the rack to a point shortof the upper end thereof. In the vertical movement of the rack, the strip 20 bears against the base of theichannel 18. Abovethe strip 2() the rack is preferably reduced in cross-section fora short distance, whereby to render the upper portion of the rack somewhat flexible with respect to the lower reinforced portion thereof. The rack is provided at intervals l throughout the intermediate and lower portions thereof withinclined seats 21 for coaction with a pawl22 which forms a part of the lock on the sash. i

A shoe 23 is `mounted on theupper end of the rack 19 for eneagement with the upper portion of the sash. Behind the shoe the rack is provided with a camblock `24 which has an inclined face 2 5 for calnming coaction with a Vcross pin 26 in the upper end of the channel 18.` Another cross pin 27 is located in the 'upper end of the channel 18 forlirniting the extent to which the shoe 23 can project from the channel. When `the raclr`19 is shifted downwardly, the `block 24 will cam against the pin 26 and force the shoe 23 outwardlyagainst the upper portion of the sash, thereby causing that portion of the sash to be pressed firmly against theouter stop 10.

A. dog 28 is pivoted at 29 to the lower end of the rack and extends downwardly therefrom within the channel 1 8. The dog 28 is also pivoted 30 `to the inner` stop 11,`the

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pivotally mounted member which iscammed outwardly away from the sash by the beveled end of a bolt 31 when the bolt is projected into engagement therewith by a spring-32. A finger piece 33 is connected with the lbolt 31 in such a way as to retractl the bolt and allow theAk pawl to return toward the sash when the finger piece is depressed. The particular lock assembly shown forms the subject matter of an application of Walter E. Keller, Serial No. 591,530, filed on even date herewith, which application contains a detailed description of the lock structure.

When the sash is raised and the finger pieces 33` of the locks at both sides are released, the pawls 22 will be forced to assume inclined positions in engagement with the racks 19 and will, upon being lowered into abutment with the nearest seats 21, shift the racks downwardly in the channels 18 under the weight of the sash. As a result of this action, the shoes 23 will force the upper portions of the sash against the outer stops 10, and the throw-over effect caused by the inclined positions of the pawls and the weight of the sash, combined with the spring force tending to move the pawls away from the sash, will force the lower portions of the sash against the outer stops, producing a tight, unyielding, noiseless, weather-proof engagement therebetween. The sash is shown in this condition in Fig. 9.

To lower the sash from an elevated position, it is merely necessary to depress the finger pieces 33 and give the sash a slight upward movement, whereupon the pawls 22 will drop back into the plane of the sash and the shoes 23 will be released, allowing the sash to be moved freely and to be lowered without any resistance into its closed position. The sash is shown in a freed condition in Fig. 8.

Then the sash reaches its fully closed position, with the sealing strip 34 on the bottom rail of the sash in'snug contact with the sill 35 of the window frame, releasing the linger pieces 33 will allow the lower ends of the pawls 22 to be forced away from the sash into engagement with the lower ends of the dogs and will cause the dogs to be deflected, thereby pulling down the racks 19, projecting the shoes l23 against the upper portions of the sash, and pressing such upper portions against the outer stops. The reaction of the spring-derived force which moves the pawls 22 outwardly serves to pressthe lower portions of the sash tightly against the outer stops, thereby producing throughout the enpressures against the outside of the sash.

To open the sash, it is merely necessary to depress the finger pieces 33, whereupon the pawls22 will drop back away from the dogs 28, the pressure applied by the shoes 23 will be released, and the sash will be freed in its guides and can be raised without appreciable effort.

Tov prevent the sashA from being opened from the outside, the lower ends of the pawls 22 may be provided with small shoulders 3G which extend under similar shoulders 37 on the lower ends ofthe dogs 28 and interlock vertically with the same.

r-Ihe sill 35 of the window frame may be advantageously provided with a' thin strip 33 of unpainted b-rass or other suitable material for engagement with the'sealing strip 34 to prevent the sticking which'so frequently occurs when a rubber sealing strip is'allowed to rest for any length of time on a' painted portion of a car window sill. The strip 38 is provided with a portion 39 which extends back under, and is securely clamped in position by, thefusual sill cap 40.y

I claim: i

1. In window construction, the combination with a window.l frame having outer sash stops, and a vertically movable sash in the frame having normally projected lock mem- Y bers, of means actuated by the weight of the sash when the latter is raised and by the projection of the lock members when the sash is lowered for pressing the sash against the stops.

2. In window construction, the combination with a window frame having outer sash stops, and a vertically movable sash in the frame having lock-operating springs, of

means actuated by the weight of the sash.v

when the latter is raisedA and by the force of the vsprings when the sash is lowered for pressing th-e sash 'against' the stops.

3. In window construction, the combination with a window frame having outer sash l stops, and a vertically movable sash in the frame having lock-operating springs, of means actuated by the'weight of the sash when the latter is raised and by the force'of the springs when the sash is lowered for press ing thersash against the stops, said means including a vertically shiftable lock rack at each side of the frame for supporting the sash at any one of several predetermined elevations, a shoe at the upper end of the rack which is cammed toward the sash when the rack is shifted downwardly, and a member at the lower end of the rack which is actuated by the action of thelock-operating spring at that side of the shoe to shift the rack downwardly,

4. In window construction, the combination with a `window frame having outer sash stops, and a vertically `movable sash `in the frame having normally projected lockmem bers, `of means actuated by the weight of the t sash when the latter is raised for pressing the sash against the stops, said means including a vertically shiftable` lock rack at each side of the frame for supporting the sash at any one of several predetermined elevations` ashoe at the upper end of the rack which is cammed toward the sash when the weight of the sash on the rack shifts the latter downn ends of the racks for engagement with the sash, and means for causing the weight of i the sash when raised to move the racks in such a way as to force the shoes against the sash.

\ 6. In windowconstruction, the combination with a window frame, and a vertically movable sash in the frame, of outer sash stops, sheet metal inner sash stops formed with channels which open toward the sash, movable lock racks supported by the sides of the channels within the latter, and means for causing the sash to be pressed against the Cil outer stops when the lock racks are moved.

7. In window construction, the combinai tion with a window frame, and a vertically movable sash in the frame, of outer sash stops, inner sash stops, vertically shiftable lock racks associated with the inner stops, shoes which are mounted on the upper ends of the racks,lmeans for moving the shoes toward the sash when the racks are shifted downwardly,

and dogswhich are pivotally connected to the i racks and are also pivotally connected to the inner stops for shi ting the racks downwardly when the dogs are 'oscillated In testimony whereof I have hereunto sub,- scribed my name.

HARRY D. SEVISON. 

